Send in new transcript?

I sent in an updated transcript to reflect my final semester grades, but that was before my degree was posted on my transcript. Now that my transcript has an extra line indicating that I have received my degree, do I need to send another transcript?

Your law school will want at least one (and usually 2) of your final transcripts showing that your degree has been conferred, and they tend to want it sent straight to them from your UG institution. They probably should have already told you about that. You might want to give them a call tomorrow and see exactly what their policy is.